1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * CS42L43 CODEC driver internal data
4 *
5 * Copyright (C) 2022-2023 Cirrus Logic, Inc. and
6 * Cirrus Logic International Semiconductor Ltd.
7 */
8
9#ifndef CS42L43_ASOC_INT_H
10#define CS42L43_ASOC_INT_H
11
12#include <linux/completion.h>
13#include <linux/mutex.h>
14#include <linux/types.h>
15#include <linux/workqueue.h>
16#include <sound/pcm.h>
17
18#define CS42L43_INTERNAL_SYSCLK 24576000
19#define CS42L43_DEFAULT_SLOTS 0x3F
20
21#define CS42L43_PLL_TIMEOUT_MS 200
22#define CS42L43_SPK_TIMEOUT_MS 100
23#define CS42L43_HP_TIMEOUT_MS 2000
24#define CS42L43_LOAD_TIMEOUT_MS 1000
25
26#define CS42L43_HP_ILIMIT_BACKOFF_MS 1000
27#define CS42L43_HP_ILIMIT_DECAY_MS 300
28#define CS42L43_HP_ILIMIT_MAX_COUNT 4
29
30#define CS42L43_ASP_MAX_CHANNELS 6
31#define CS42L43_N_EQ_COEFFS 15
32
33#define CS42L43_N_BUTTONS 6
34
35struct clk;
36struct device;
37
38struct snd_soc_component;
39struct snd_soc_jack;
40
41struct cs42l43;
42
43struct cs42l43_codec {
44 struct device *dev;
45 struct cs42l43 *core;
46 struct snd_soc_component *component;
47 struct irq_domain *dom;
48 unsigned int shutter_irqs[4];
49
50 struct clk *mclk;
51
52 int n_slots;
53 int slot_width;
54 int tx_slots[CS42L43_ASP_MAX_CHANNELS];
55 int rx_slots[CS42L43_ASP_MAX_CHANNELS];
56 struct snd_pcm_hw_constraint_list constraint;
57
58 u32 eq_coeffs[CS42L43_N_EQ_COEFFS];
59
60 unsigned int refclk_src;
61 unsigned int refclk_freq;
62 struct completion pll_ready;
63
64 unsigned int decim_cache[4];
65 unsigned int adc_ena;
66 unsigned int hp_ena;
67
68 struct completion hp_startup;
69 struct completion hp_shutdown;
70 struct completion spkr_shutdown;
71 struct completion spkl_shutdown;
72 struct completion spkr_startup;
73 struct completion spkl_startup;
74 // Lock to ensure speaker VU updates don't clash
75 struct mutex spk_vu_lock;
76
77 // Lock for all jack detect operations
78 struct mutex jack_lock;
79 struct snd_soc_jack *jack_hp;
80
81 bool use_ring_sense;
82 unsigned int tip_debounce_ms;
83 unsigned int tip_fall_db_ms;
84 unsigned int tip_rise_db_ms;
85 unsigned int bias_low;
86 unsigned int bias_sense_ua;
87 unsigned int bias_ramp_ms;
88 unsigned int detect_us;
89 unsigned int buttons[CS42L43_N_BUTTONS];
90
91 struct delayed_work tip_sense_work;
92 struct delayed_work bias_sense_timeout;
93 struct completion type_detect;
94 struct completion load_detect;
95
96 bool load_detect_running;
97 bool button_detect_running;
98 bool jack_present;
99 int jack_override;
100 bool suspend_jack_debounce;
101
102 struct delayed_work hp_ilimit_clear_work;
103 bool hp_ilimited;
104 int hp_ilimit_count;
105
106 struct snd_kcontrol *kctl[5];
107};
108
109#if IS_REACHABLE(CONFIG_SND_SOC_CS42L43_SDW)
110
111int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
112 struct snd_pcm_hw_params *params,
113 struct snd_soc_dai *dai);
114int cs42l43_sdw_remove_peripheral(struct snd_pcm_substream *substream,
115 struct snd_soc_dai *dai);
116int cs42l43_sdw_set_stream(struct snd_soc_dai *dai, void *sdw_stream, int direction);
117
118#else
119
120static inline int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
121 struct snd_pcm_hw_params *params,
122 struct snd_soc_dai *dai)
123{
124 return -EINVAL;
125}
126
127#define cs42l43_sdw_remove_peripheral NULL
128#define cs42l43_sdw_set_stream NULL
129
130#endif
131
132int cs42l43_set_jack(struct snd_soc_component *component,
133 struct snd_soc_jack *jack, void *d);
134void cs42l43_bias_sense_timeout(struct work_struct *work);
135void cs42l43_clear_jack(struct cs42l43_codec *priv);
136void cs42l43_tip_sense_work(struct work_struct *work);
137irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data);
138irqreturn_t cs42l43_button_press(int irq, void *data);
139irqreturn_t cs42l43_button_release(int irq, void *data);
140irqreturn_t cs42l43_tip_sense(int irq, void *data);
141int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
142int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
143
144extern const struct soc_enum cs42l43_jack_enum;
145
146#endif /* CS42L43_ASOC_INT_H */
147

source code of linux/sound/soc/codecs/cs42l43.h